Time recorder



G.-KRUM.

TIME RECORDER.

APPLICATION FILED JUNESO, 1920.

5 SHEETSSHEET I.

Patented July 25, 1922. 1 1311 :fzwenfor:

G. KRUM. TIME RECORDER.

, APPLICATION FILED JUNE 30, 1920.

5 Patented July 25, 1922.

5 SHEETS-SHEET 2.

$2 wafer.-

G. KRUM.

TIME RECORDER.

APPLICATION FILED JUNE 30, 1920.

1 ,423,805 Patented July 25, 1922.

5 SHEETSSHEET 3.

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G. KRUM.

TIME RECORDER.

APPLICATION FILED JUNE 30,1920.

1 ,423,805. Patented July 25, 1922.

5 SHEETSSHEET 4.

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J22 venl'ar:

G. KRUM.

TIME RECORDER.

APPLlCATlON FILED JUNE 30. 1920.

1,423,805. Patented uly 25, 1922.

5 SHEETS-SHEET 5.

Jnverzior:

MW Zwn UNITED STATES PATENT OFFICE.

GUSTAV xmm, or nUIsBUnG- 'EEox. GERMANY.

TIME RECORDER.

Application filed June 30,

ing andrecording the time of arrival of homing pigeons, though, obviously, the recording device may equally well be used for other indicating and recording purposes.

The principal object ofmy invention is the provision of means for normally preventing the time recorder from operating until an object, in our case a capsule, containing the identity member taken from the incommg homer, is dropped into the recorder, when the latter will be released for making asingle time record and is then automatically locked again, until again released by the insertion of another capsule; a further object is to provide means which will, on an attempt to fraudulently tamper with the apparatus for instance by opening the case to gain access to the mechanism, make a permanent readily visible mark across the record tape; and still another object of my invention is a dolometer device which will defeat any attempt to falsify the records by speeding-up the clock work, which as is well known can be done by repeatedly abruptly oscillating the clock about its axis. The dolometer of my invention effectively prevents any such fraudulent manipulation by so acting on the balance wheel of the clock work that the clock will be stopped after it has been oscillated a number of times.

My invention will best be understood when described in connection with the accompanying drawings, which show a preferred embodiment of my invention and in which Fig. 1 is a perspective view of the time recorder with the fraginentally shown lid in open position: Fig. 2 is a horizontal section therethrough; Fig. 3 shows the look ing mechanism for the rotatable pocketed drum with closed lid, the latter partly broken away, and Fig. 4 illustrates this mechanism with lifted lid and removed drum; Fig. 5 is a section through Fig. 3 on Specification of Letters Patent. v

1920. Serial No. 393,215;

line A-B; and Fig. 6 a section on line Ce-D of Fig. 5 toward the left; Figs. 7 and 9 show side views'and Figs. 8 and 10 sections online N -O of Fig. 7 and line L--MJ of Fig. 8 respectively of the locking and record canceling mechanisms; Fig. '11 is a partial side View of the dolometer with the compensating balance wheel; 'Fig. 12 is a top view of the time clock and the dolometer; Fig. 13

illustrates a section on line E-F, and Fig. 14 a section on line G-H of Fig. 12. Fig. 15 is a section on line J-K of the Fig. 13, and Fig. 16 shows a slightly modified form of construction of the'mechanism for looking the rotatable drum.

Patented July 25, 1922..

As is well known in this art the homers are each provided before starting on their flight with anidentifying marker, generally in-the form of a number-bearing rubber ring attached to a leg of the bird. Upon the arrival of a home-coming bird to be timedin, this marker is removed from the'homer, immediately placed into a capsule 1 and the latter then dropped through an, aperture 2 in the hinged lid 3 of the case into a compartment or pocket 4: which happens to register with the aperture 2 and which is one of a series of su'ch pockets annularly mounted to form the rim of a rotatable drum, which under certain conditions can be stepwise rotated by manipulation of the handle 12 whose shaft 10 extends outwardly through the case wall. Each capsule 1 is provided with an extension 5, which may be a longitudinal outer rib (Fig. 5) or a coaxial pocket, forces back the star-shaped plate or disc 7, which latter slides on the upper squared end of a shaft 15 against the up ward pressure of a spring 16. On the disc 7 being forced back below the bottom of the pocket it frees the rotary drum so that the latter now can rotate, as described below, until the succeeding empty pocket registers with the aperture 2, when the disc will snap back in position to lock the drum again against further rotation. On the depression of the disc the grooved sleeve 20 is correspondingly forced back, which causes a bell crank 8, whose upper end is guided by the sleeve groove, to rock about its fulcrum 9 with the result that its lower end slides laterally off the cam 11 on shaft 10,-thus allowing the latter to be rotated. A worm 13 fast on. sha t 10 meshes with a worm.

wheel 14 fast on the shaft 15, on the upper end of which is mounted the pinion 18 which meshes with the internal. rack gear 19 on the rotatable drum. Mani ulation of handle 12 thus causes corresponding rotation of the drum, and the dimensions and ratio of the several gears is such that one complete handle revolution causes auforward movement of the drum the width of a pocket 4, the

depending bell crank arm sliding on the lateral face of theflcam 11 until at the end of the revolution of shaft 10 it againsnaps back behind-the cam under the influence of spring 16 to lock-the parts. A retrograde movement of the gears is prevented in any suitable manner, for instance by an ordinary pawl and ratchet wheel device 44- shown in Fi .4. I

i cam 45 fast on the shaft 10 cooperates with an arm 47 rigidly mounted on the slide rod 46 5 and 6) which is acted on by the springs 48 and 53 ofdifferent tensions. On commencement of the handle rotation this cam 45 releases the arm 47 so that now,

under the pressure of the stronger spring 48,

the rod 46 is moved forwardly (to the left in Fig. 2). On the inner extreinity of this rod 46 is 'mounted the pressure plate 49 which in advancing resses the paper strip or tape 50 against t e clock-operated time stam 51, which is done preferably by the aid 0 the interposed inked ribbon 52. Both the tape and the inked ribbon, unwind from a sup.-

ply roller and arewound up on anotherv roller by a train of gears operated from the handled shaft in well known manner. After the time record has been made the pressure plate 49 is at once retracted again by the spring 53. On further rotation of the crank handle the tape with the time imprint is moved past a window 54 in'the case 55 (Fig. 1). For each complete handle revolution I the tape is advancedto .the extent of a time record imprint-.5

.To prevent tampering. with the mechanisms, all ofwhich are readily removably arranged in the case 55, the hinged lid 56 is provided with a safety lock 57 (Fig. 1) whose bolts 23 (Fig. 8) lockingly engage in corresponding recesses in the case walls. One of these bolts 23 is provided with an extension 24, which upon the bolt being moved in the direction of the arrow in'Fig. 8, on closure of the lid, presses against the longer arm of a bell crank 26, fulcrumed at 25, which cooperates with the slide member 27 to the lower end of which is him ed at 28 a stylus-carrying arm 29 (Figs. 10). At the hinge connection 28 is provided a coil spring 34 which tends to swing the stylus carrier 29 into the position shown in Fig. 7. Normally the stylus carrier 29 is set in the position shown in dotted lines in Fig. 9., a pin 30 of the carrier coacting with a fixed stop 31. 'If now the lid of the case is closed the bolt extension 24'will rock the bell crank 26 which causes the slide member 27 with the stylus carrier 29 to be displaced downwardly with the result that the pin 30 will slide along the sto with a second 'fixe stop' 32. The bolts all being shot home, the lid and case may additionally be safeguarded by a lead closure. If now an unauthorized person tries to open the lid by retractin crank 26 will be re eased and a spring 33 will force the slide member 27 upwardly into the upper end position shown in 'Fig. 10. The stylus carrier 29 simultaneously is 31 and finally contacts the bolts 23, the bell drawn up its pin 30 leaving the stop 32,

clearly and permanently showing that an attempt wasmade to tamper with the device.

To prevent an attempt to speed up the clock by repeatedly quickl' oscillating it' about its axis,,I have provi ed a dolometer which is inoperativewhen the-clock is not disturbed but which, upon the clock being shaken or oscillated, acts on the balance wheel to stop the works. This dolometer is shown in Figs. 11-15. It essentially comprises a two,-armed pendulum member 36 freely oscillating about the spindle 39 which carries the hand 37 The pendulum oscillations are transmitted to the spindle in well known -manner in one direction only, a pawl and ratchet device 58 preventing retrograde movement of the spindle. Upon the clock being shaken the pendulum will oscillate and stepwise advance the spindle 39 to whose inner end is secured an arm 40 from which extends a pin 38. On a complete revolution of the spindle this pin 38 contacts with the free end of a double-armed rocking lever 41, forces it down and thereby causes its other end to arrestingly act on the balance wheel 42of the clock work, which stops the clock, making it at once apparent, that an attempt has been made to tamper with the apparatus in the indicated direc- /t1on.

What I claim is 1. Time recorder of the character set forth, comprising in combination with an enclosing case and a lid therefor, a rotary drum, a. series of pockets forming the rim of said drum, means normally preventing rotation of said pocketed drum, means adapted to be inserted into said pockets for temporarily releasing said drum and means for advancing the latter during such temporary release the width of a pocket, a clock work, time recording means driven by said clock work and actuated by said drum advancing means during the rotary advance of. said drum, time record canceling means operlid, and means for arresting said clock work upon the recorder being repeatedly shaken.

2. Time recorder of the character set forth, comprising in combination with an enclosing case presenting windows and an aperture, a lid hinged to said case, means for locking said lid to said casing in the closed position, and means for visibly registering an unauthorized attempt to open said lid; a clock work, time recording means driven by said clock work, a rotary drum, a series of pockets circumferentially arranged on said drum and adapted to successively register with said case aperture, yieldable means for normally preventing rotation of said drum, means to be dropped through said case aperture into the registering pocket adapted to act on said yieldable stop means for temporarily freeing said drum, manually operable means for stepwise advancing said drum the width of a pocket during each temporary release, for operating said clockdriven time recording means,-and for then looking the parts again in the normal, inoperative position.

3. Time recorder of the character set forth, comprising in combination with a windowed case and a lid therefor, a clock work and a time recording device including a time-stamp receiving. tape operated by said clock work, bolt means for locking said lid to said case, means for visibly register- I ing on said tape an unauthorized attempt to open said case lid, comprising a slide member, a stylus-carrying arm hinged thereto and spring means tending to relatively swing said stylus arm in counterclockwise direction, means for normally retaining said slide in the domain of said lid and means for displacing it upon closure of said lid, means for retaining said stylus arm in an inoperative position, means for retaining sald stylus arm in a'second inoperative position upon said slide member being displaced by the closure of said lid, and means for releasing said stylus arm from the second said position to be swung around by said spring means for drawing the stylus across said tape.

' meshing with 'to speed it up by 4. Time recorder of the character set forth, comprising in combination with a case having wlndows and an aperture, and

a lid for said case, a clock work, a time redrum, means normally preventing rotation of said drum, comprising a yieldable member normally partly extending into that -one of sa'id pockets which happens to register with said case aperture, means to be inserted through said aperture into the registering pocket for temporarily disconnecting said rotation-preventing means and said drum, means for stepwise advancing said drum during such temporary disconnection, comprising a manually operable shaft, a worm thereon, a shaft extending transversely of the first said shaft, a worm wheel and a pinion on this second shaft and said p1n1on said internal drum rack, means for normally preventing manipulation of said manually operable shaft, comprising a spring influenced bell crank, a cam on the first said shaft, and a guide member associated with said yieldable rotation-preventing means, the two extremities of said bell crank respectively coacting wlth said cam and said guide member for allowing rotation of said drum on said yieldable means being temporarily disconnected from said drum, means for preventing unauthorized opening of said caselid, and means for recording any such tampering attempt on said time record receiving ta e, and means for arresting said clock wor upon an attempt oscillating it, comprising a pointer spindle, a pendulum advancmgly actin on said spindle in one d1rect1on only, and fever means acted on by said spmdle once for each complete revolution thereof for arrestingly'acting on the balance wheel of said clock work.

In testimon whereof I afiix my signature.

y GUSTAV KRUM. 

